[petsc-users] Pthread support

[Shri]

Alex,
   We've taken out the old pthread code since it was experimental and we plan to have a more generic interface that can support different threading models rather than sticking to one. All the thread stuff can now be accessed through the threadcomm interface. If you run your code with --help you'll see the available options available with threadcomm.

Shri

Shri
On Jul 23, 2012, at 7:08 PM, Alexander Goncharov wrote:

> Hello!
> 
> I have a question about pthread support in PETSC. I could not find it in
> the development version. Is it going to be supported in the new release?
> 
> The reason I tried development version is because in petsc-3.3 compiled
> with pthreadclasses=1 all jobs would be sent to one core, if I start
> executables separately. Same for MPI, mpirun -np 4 would show up as 4
> processes with 25% CPU usage each, in the "top" output. Without
> pthreadclasses all is ok. I would have processes with each utilizing
> separate core at 100%. Have you come across such a behavior?
> 
> I ran ex2 from ksp tutorials.
> 
> Thank you!
> Alexander.
>